<!DOCTYPE html>
<html>
    <head>
        <script src="js/vue.js"></script>
    </head>
    <body>
        <div id="app">
            <parent></parent>

        </div>
        <template id="child1">
         <div>
            <button @click="click">Send</button>
            <input type="text" v-model="message" >
        </div>
        </template>
        <script>
            Vue.component('parent',{
                template : '<div><child @childFn="transContent"></child>子组件传来的值: {{message}}</div>',
                data : function() {
                    return { message : ''}
                },
                methods : {
                    transContent(payload) {
                        this.message = payload;
                    }
                }
            });

            Vue.component('child',{
                template:'#child1',
                data : function() {
                   return { message : '子组件的信息'}
                },
                methods : {
                    click() {
                        this.$emit('childFn',this.message);
                }
            }
            });

            var vm = new Vue({
                el:'#app'
            });

        </script>
    </body>
</html>